Composite filament textile and environment-friendly composite filament artificial leather manufactured using the same

ABSTRACT

An environmental-friendly composite filament artificial leather includes a composite filament textile and an elastomer film. The composite filament textile is made of composite filament. The composite filament includes at least one core portion and a sheath portion. The at least one core portion is a polyester-type polymer, a polyamide polymer or a polypropylene polymer. The sheath portion sheathes the at least one core portion, and the sheath portion is a thermoplastic elastomer. The elastomer film is bonded with the composite filament textile. The elastomer film is made of one selected from the following materials: thermoplastic polyurethane (TPU), thermoplastic polyester elastomer (TPEE) and thermoplastic polyolefin (TPO). By this way, an environment-friendly artificial leather of lightweight, good abrasion, good touch feeling and well dimentional stability can be manufactured. Furthermore, the artificial leather can be manufactured without use of any solvent, so as to conform to the environment protection requirement.

FIELD

The disclosure relates to an artificial leather and a textile, moreparticular to an environmental-friendly composite filament artificialleather and a composite filament textile.

BACKGROUND

If a conventional artificial leather is made by staple fiber and astaple fiber textile base manufactured with same, dimensional stabilityof the base is unstable; meanwhile, in order to maintain good touchfeeling of the leather, an objective of lightweight cannot be achieved.Simultaneously, if a PU resin is dipped or laminated in themanufacturing process, it is not environment-friendly because ofcontaining a solvent. If the artificial leather is made by filament anda filament textile base manufactured with same, the dimensionalstability is great, but the leather cannot get good touch feeling due tothe thin structure of the filament textile; also, a PU resin is dippedor laminated in the manufacturing process, and likewise it is notenvironment-friendly because of containing a solvent.

The conventional artificial leather and manufacturing method thereof areanalyzed in the following patent documents in the prior art.

1. TW201128019

Approach: Spraying the heterogeneous section fiber and a compositethermoplastic material onto the surface of the web, then bonding thethermoplastic base material and the fiber and the web by heating, andthen transfer the pattern from the release paper to the surface ofcomposite material.

Disadvantage: process is complicated, dimensional stability is poor,lightweight cannot be achieved, and a problem of uneven attachmentdistribution occurs.

2. TW438927

Approach: non-elastomer fiber and fiber with the surface configured withan elastomer are stacked to form a base material, and then theartificial leather is obtained through a staple fiber manufacturingprocess.

Disadvantage: manufacturing process time is long, attachment is uneven,tensile strength is low, peeling strength is bad, and web distributionis prone to be uneven.

3. TW201040352

Approach: the base material is formed by extremely slender filament anda elastomer.

Disadvantage: dimensional stability is undesirable.

Based on the foregoing analysis, it is necessary to provide anenvironment-friendly composite filament artificial leather andmanufacturing method thereof as well as composite filament textile andmanufacturing method thereof, so as to solve the foregoing deficienciesin the prior art.

SUMMARY OF THE INVENTION

In accordance with one aspect of the present disclosure, anenvironmental-friendly composite filament artificial leather includes acomposite filament textile and an elastomer film. The composite filamenttextile is made of the composite filament or the composite filament andother filament jointly. The composite filament includes at least onecore portion and a sheath portion. The at least one core portion is apolyester-type polymer, a polyamide polymer or a polypropylene polymer.The sheath portion sheathes the at least one core portion, and thesheath portion is a thermoplastic elastomer. The elastomer film isbonded with the composite filament textile.

In accordance with another aspect of the present disclosure, a compositefilament textile is provided. The composite filament textile is made ofthe composite filament or the composite filament and other filamentjointly. The composite filament includes at least one core portion and asheath portion. The at least one core portion is a polyester-typepolymer, a polyamide polymer or a polypropylene polymer. The sheathportion sheathes the at least one core portion, and the sheath portionis a thermoplastic elastomer.

In the present disclosure, the composite filament textile is made of thecomposite filament or the composite filament and other filament jointly,and by bonding the composite filament textile with the elastomer film,an environment-friendly artificial leather of lightweight, goodabrasion, good touch feeling and well dimentional stability can bemanufactured. Moreover, in the present disclosure, the artificialleather can be manufactured without use of any solvent, so as to conformto the environment protection requirement.

BRIEF DESCRIPTION OF THE DRAWINGS

Aspects of the present disclosure are understood from the followingdetailed description when read with the accompanying figures. It isemphasized that, in accordance with the standard practice in theindustry, various features are not drawn to scale. In fact, thedimensions of the various features may be arbitrarily increased orreduced for clarity of discussion.

FIG. 1 shows a schematic structural view of an environment-friendlycomposite filament artificial leather according to the presentdisclosure.

FIG. 2 shows a structural cross-sectional view of a composite filamentaccording to the present disclosure.

FIG. 3 shows a structural cross-sectional view of another compositefilament according to the present disclosure.

FIG. 4 shows a flow diagram of a manufacturing method for anenvironment-friendly composite filament artificial leather according tothe present disclosure.

FIGS. 5A to 5C show schematic diagrams of a manufacturing method for anenvironment-friendly composite filament artificial leather according tothe present disclosure.

FIG. 6 shows a schematic diagram of a manufacturing process in which afilament composite spinning machine is used to prepare compositefilament according to Embodiment 1.

FIG. 7 shows a schematic diagram of a manufacturing process in which aspunbond spinning machine is used to prepare composite filamentaccording to Embodiment 2.

FIG. 8 shows a schematic diagram of a manufacturing process in which amelt-blown spinning machine is used to prepare composite filamentaccording to Embodiment 3.

FIG. 9 shows a schematic diagram of a manufacturing process in which ahandheld melt-blown spinning machine is used to prepare compositefilament according to Embodiment 4.

DETAILED DESCRIPTION OF THE INVENTION

It is to be understood that the following disclosure provides manydifferent embodiments or examples, for implementing different featuresof various embodiments. Specific examples of components and arrangementsare described below to simplify the present disclosure. The presentdisclosure may, however, be embodied in many different forms and shouldnot be construed as being limited to the embodiments set forth herein;rather, these embodiments are provided so that this description will bethorough and complete, and will fully convey the present disclosure tothose of ordinary skill in the art. It will be apparent, however, thatone or more embodiments may be practiced without these specific details.

In addition, the present disclosure may repeat reference numerals and/orletters in the various examples. This repetition is for the purpose ofsimplicity and clarity and does not in itself dictate a relationshipbetween the various embodiments and/or configurations discussed.

It will be understood that singular forms “a”, “an” and “the” areintended to include the plural forms as well, unless the context clearlyindicates otherwise.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which this invention belongs. It will befurther understood that terms; such as those defined in commonly useddictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art and thepresent disclosure, and will not be interpreted in an idealized oroverly formal sense unless expressly so defined herein.

FIG. 1 shows a schematic structural view of an environment-friendlycomposite filament artificial leather according to the presentdisclosure. FIG. 2 shows a structural cross-sectional view of acomposite filament according to the present disclosure.

With reference to FIG. 1 and FIG. 2, the environment-friendly compositefilament artificial leather 10 of the present disclosure includes acomposite filament textile 12 and an elastomer film 14.

The composite filament textile 12 is made of composite filament 120 ormade by blending composite filament 120 and polyester filament orpolyamide filament. The composite filament textile 12 can be in a wovenor nonwoven form, wherein the woven can be loom or knit, and the wovencan be made by blending regular filament or high-tenacity filament andthe composite filament 120. Preferably, the thickness of the compositefilament textile 12 is 0.025 to 10 mm inclusive, and the tensilestrength of the composite filament textile 12 is 1 to 25 kg/25.4 mminclusive.

In some embodiments, the composite filament 120 includes at least onecore portion 122 and a sheath portion 124. The at least one core portion122 accounts for a proportion of 10 to 90% inclusive of the entirefilament weight, and the sheath portion 124 can account for a proportionof 90 to 10% inclusive of the entire filament weight.

The at least one core portion 122 is a polyester-type polymer, apolyamide polymer or a polypropylene polymer. In some embodiments, theintrinsic viscosity of the polyester-type polymer is 0.4 to 1.1inclusive, the relative viscosity of the polyamide polymer is 2.0 to 3.0inclusive, and the melt index of the polypropylene polymer is 30 to 150inclusive (according to the ASTM D1238 standard, conditions include theweight of 2.16 kg, and the temperature of 230° C.). Preferably, the atleast one core portion 122 can be one selected from the followingpolymers: polyethylene terephthalate (PET), polybutylene terephthalate(PBT), polytrimethylene terephthalate (PTT), thermoplastic aliphaticpolyester (PLA), polycaprolactam (Nylon6), polyhexamethylene adipamide(Nylon6,6), polypropylene homopolymer and polypropylene randomcopolymer.

The sheath portion 124 sheathes the at least one core portion 122, andthe sheath portion 124 is a thermoplastic elastomer. In someembodiments, the raw material melt index of the sheath portion 124 is 1to 100 g/10 min inclusive, which is according to the ASTM D1238standard, conditions include the weight of 2.16 kg, and the temperatureof 190° C. Preferably, the sheath portion 124 cab be one selected fromthe following polymers: thermoplastic polyurethane (TPU), thermoplasticpolyester elastomer (TPEE) and thermoplastic polyolefin (TPO).

Referring to FIG. 3, which shows a structural cross-sectional view ofanother composite filament according to the present disclosure. As shownin FIG. 3, in another embodiment, the composite filament 120 can includea plurality of core portions 122 and a sheath portion 124, the coreportions 122 are disposed at intervals, and the sheath portion 124sheathes the core portions 122.

Moreover, in order to achieve lightweight and increase dimensionalstability, preferably, the denier, density and strength of the compositefilament 120 should respectively meet the following conditions: thedenier is 0.001 to 20 dpf(denier per filament) inclusive; the density is0.8 to 1.4 g/cm³ inclusive; and the strength is 0.5 to 8.0 g/deninclusive.

Referring to FIG. 1 again, the elastomer film 14 is bonded with thecomposite filament textile 12. In some embodiments, the elastomer film14 and the composite filament textile 12 are bonded in one mannerselected from the following: bonding by using a water-based adhesivewith a solid content of 5-55% inclusive, and bonding by directlyperforming hot-pressing at a temperature ranging from 90 to 180° C.inclusive.

Furthermore, the elastomer film 14 can be a foamed film or a non-foamedfilm, wherein the density of the foamed film is 0.3 to 0.9 g/cm³inclusive and the thickness thereof is 0.2 to 2.0 mm inclusive. Thethickness of the non-foamed film is 0.1 to 2.0 mm inclusive. Preferably,the elastomer film 14 can be made of one selected from the followingmaterials: thermoplastic polyurethane (TPU), thermoplastic polyesterelastomer (TPEE) and thermoplastic polyolefin (TPO).

FIG. 4 shows a flow diagram of a manufacturing method for anenvironment-friendly composite filament artificial leather according tothe present disclosure. FIGS. 5A to 5C show schematic diagrams of amanufacturing method for an environment-friendly composite filamentartificial leather according to the present disclosure. With referenceto step S41 in FIG. 4 and FIG. 5A, composite filament 120 is prepared.In this step, the composite filament 120 includes at least one coreportion 122 and a sheath portion 124. The at least one core portion 122accounts for a proportion of 10 to 90% inclusive of the entire filamentweight, and the sheath portion 124 accounts for a proportion of 90 to10% inclusive of the entire filament weight.

The at least one core portion 122 is a polyester-type polymer, apolyamide polymer or a polypropylene polymer. Preferably, the at leastone core portion 122 can be one selected from the following polymers:polyethylene terephthalate (PET), polybutylene terephthalate (PBT),polytrimethylene terephthalate (PTT), thermoplastic aliphatic polyester(PLA), polycaprolactam (Nylon6), polyhexamethylene adipamide (Nylon6,6),polypropylene homopolymer and polypropylene random copolymer.

The sheath portion 124 sheathes the at least one core portion 122, andthe sheath portion 124 is a thermoplastic elastomer. Preferably, thesheath portion 124 can be one selected from the following polymers:thermoplastic polyurethane (TPU), thermoplastic polyester elastomer(TPEE) and thermoplastic polyolefin (TPO).

Moreover, in this step, a method for preparing the composite filament120 can be one selected from the following: a melt spinning by extrusionmethod, spunbond method and a melt-blown method. Preferably, theextrusion temperature of the at least one core portion 122 is 180 to250° C. inclusive, and the extrusion temperature of the sheath portion124 is 150 to 250° C. inclusive.

With reference to step S42 in FIG. 4 and FIG. 5B, a composite filamenttextile 12 is made of the composite filament 120 or made by blending thecomposite filament 120 and polyester filament or polyamide filament. Inthis step, a method for manufacturing the composite filament textile 12can be one selected from the following: a melt spinning by extrusionmethod, a spunbond method, a melt-blown method and a weaving method. Insome embodiments, the weaving method includes: water-jet loom, air-jetloom, a circular loom, a braiding machine, a jacquard loom, and a flatknitting machine. Furthermore, the composite filament textile 12 can bein a woven or nonwoven form. Furthermore, the composite filament textile12 can be interwoven or blended with ordinary fiber or high-tenacityfiber, and the composite filament textile 12 can be used be the upper ofthe shoe material through a thermoplastic process.

With reference to step S43 in FIG. 4 and FIG. 5C, an elastomer film 14is bonded with the composite filament textile 12. In this step, theelastomer film 14 can be made of one selected from the followingmaterials: thermoplastic polyurethane (TPU), thermoplastic polyesterelastomer (TPEE) and thermoplastic polyolefin (TPO).

In some embodiments, the elastomer film 14 is hot-pressed and laminatedto the composite filament textile 12. Alternatively, in anotherembodiment, the elastomer film 14 can bond with the composite filamenttextile 12 in a coating or spraying manner For example, a water-basedpolyurethane (PU) is coated or sprayed to the composite filament textile12, and the water-based polyurethane (PU) can be formed into theelastomer film 14 after drying.

In the present disclosure, the composite filament textile is made of thecomposite filament or the composite filament and another filamentjointly, and by bonding the composite filament textile with theelastomer film, an environment-friendly artificial leather oflightweight, good abrasion, good touch feeling and dimensional stabilitycan be manufactured. Furthermore, in the present disclosure, theartificial leather can be manufactured without use of any solvent, so asto conform to the environment protection requirement. Moreover, in thepresent disclosure, the artificial leather can be manufactured by onlyuse of hot bonding machining, and compared with the conventionalartificial leather which needs a long oven drying process, the processtime can be shortened, the energy source discharge can be reduced, themanufacturing cost can be effectively reduced and the productionefficiency can be effectively increased.

Furthermore, the environment-friendly composite filament artificialleather of the present disclosure was breathable, and can be directlyformed to the upper of the shoe material. For example, the compositefilament textile 12 can be in a shoe shape, and the elastomer film 14can be formed into a shoe surface through hot-pressing.

Moreover, the composite filament textile of the present disclosure canalso be directly formed into a concave-convex shoe surface throughhot-pressing. For example, the composite filament textile 12 can be in ashoe shape.

The present disclosure is illustrated in detail with the followingembodiments, but it does not mean that the present disclosure is onlylimited to the content disclosed by these embodiments.

EMBODIMENT 1

PBT (polybutylene terephthalate, IV=0.74) is taken as an ingredient of acore portion, TPU (thermoplastic polyurethane, MI=4, 190° C., 2.16 kg)is taken as an ingredient of a sheath portion, and a ratio of the weightof PBT to that of TPU is 6:4. Referring to FIG. 6, which shows aschematic diagram of a manufacturing process in which a filamentcomposite spinning machine is used to prepare composite filamentaccording to Embodiment 1. As shown in FIG. 6, the filament compositespinning machine is used to manufacture composite filament with acore-sheath section, the temperature in a PBT spinning box is 250° C.,the temperature in a TPU spinning box is 220° C., the winding speed is2500 m/min, and the composite filament with the specification of 100den/24 f and the single-fiber strength of 4 g/den can be obtained.

After the composite filament is arranged in order, the compositefilament is woven by a loom into a fabric which the ends per inch (Warprate) is 17 and the Picks per inch is 17 and with a thickness of 0.15mm.

A TPU film with a thickness of 0.1 mm and the fabric are hot-pressed andlaminated with a hot-pressing machine at a temperature of 120° C. and apressure of 20 kg/cm², and the TPU film and the TPU of the sheathportion of the composite filament are simultaneously softened and melteddue to heat and are hot-laminated, so a soft and elastic semi-finishedproduct of the environment-friendly composite filament artificialleather can be manufactured with a thickness of 0.25 mm.

By use of a polyurethane(PU) dry coating process with a release paper,first to coating a water-based polyurethane be the surface layer andsecond to coating a water-based adhesive, both of them are sequentiallycoated on the release paper, then the foregoing semi-finished productare laminate to water-based adhesive, finally release from the releasepaper, the environment-friendly composite filament artificial leatherwith various surface textures can be manufactured.

EMBODIMENT 2

PET (polyethylene terephthalate, IV=0.5) is taken as an ingredient of acore portion, TPU (thermoplastic polyurethane, MI=50, 190° C., 2.16 kg)is taken as an ingredient of a sheath portion, and a ratio of the weightof PET to that of TPU is 6:4. Referring to FIG. 7, which shows aschematic diagram of a manufacturing process in which a spunbondcomposite fiber spinning machine is used to prepare composite filamentaccording to Embodiment 2. As shown in FIG. 7, the spunbond compositefiber spinning machine is used to manufacture composite filament with acore-sheath section, the temperature in a PET spinning box is 260° C.,the temperature in a TPU spinning box is 220° C., and spinning isperformed through a spunbond process, wherein the air pressure is 9kg/cm², the wind induced yarn drawing speed is 4000 m/min, and theconveying belt speed is 4 m/min, so the composite filament with adiameter of 20 μm and a spunbond nonwoven textile with a thickness of0.22 mm can be manufactured. Then a hot-pressing machine (at atemperature of 110° C. and a pressure of 5 kg/cm²) is used to hot-pressthe spunbond nonwoven textile, and the spunbond nonwoven textile afterthe hot-pressing is 0.2 mm in thickness, and has well dimensionalstability.

A TPU foamed film with a thickness of 0.1 mm and the spunbond nonwoventextile are hot-pressed and laminated with a hot-pressing machine at atemperature of 110° C. and a pressure of 10 kg/cm², and the TPU film andthe TPU of the sheath portion of the composite filament aresimultaneously softened and melted due to heat and are hot-laminated, soa soft and elastic semi-finished product of the environment-friendlycomposite filament artificial leather can be manufactured with athickness of 0.3 mm.

By use of a polyurethane(PU) dry coating process with a release paper,first to coating a water-based polyurethane be the surface layer andsecond to coating a water-based adhesive, both of them are sequentiallycoated on the release paper, then the foregoing semi-finished productare laminate to water-based adhesive, finally release from the releasepaper, the environment-friendly composite filament artificial leatherwith various surface textures can be manufactured.

EMBODIMENT 3

PTT (polytrimethylene terephthalate, IV=0.55) is taken as an ingredientof a core portion, TPU (thermoplastic polyurethane, MI=80, 190° C., 2.16kg) is taken as an ingredient of a sheath portion, and a ratio of theweight of PTT to that of TPU is 6:4. Referring to FIG. 8, which shows aschematic diagram of a manufacturing process in which a melt-blownspinning machine is used to prepare composite filament according toEmbodiment 3. As shown in FIG. 8, the melt-blown composite fiberspinning machine is used to manufacture composite filament with acore-sheath section, the temperature in a PTT spinning box is 250° C.,the temperature in a TPU spinning box is 200° C., and spinning isperformed through a melt-blowing process, wherein the high-pressure airpressure is 3000 psi, the high-pressure air temperature is 180° C., andthe conveying belt speed is 2 m/min, so the composite filament with adiameter of 20 μm and a melt-blown nonwoven textile with a thickness of0.27 mm can be manufactured. Then a hot-pressing machine (at atemperature of 100° C. and a pressure of 5 kg/cm²) is used to hot-pressthe melt-blown nonwoven textile, and the melt-blown nonwoven textileafter the hot-pressing is 0.25 mm in thickness, and has well dimensionalstability.

A TPU foamed film with a thickness of 0.1 mm and the melt-blown nonwoventextile are hot-pressed and laminated with a hot-pressing machine at atemperature of 110° C. and a pressure of 10 kg/cm², and the TPU film andthe TPU of the sheath portion of the composite filament aresimultaneously softened and melted due to heat and are hot-laminated, soa soft and elastic semi-finished product of the environment-friendlycomposite filament artificial leather can be manufactured with athickness of 0.35 mm.

By use of a polyurethane(PU) dry coating process with a release paper,first to coating a water-based polyurethane be the surface layer andsecond to coating a water-based adhesive, both of them are sequentiallycoated on the release paper, then the foregoing semi-finished productare laminate to water-based adhesive, finally release from the releasepaper, the environment-friendly composite filament artificial leatherwith various surface textures can be manufactured.

EMBODIMENT 4

PBT (polybutylene terephthalate, IV=0.74) is taken as an ingredient of acore portion, TPU (thermoplastic polyurethane, MI=80, 190° C., 2.16 kg)is taken as an ingredient of a sheath portion, and a ratio of the weightof PBT to that of TPU is 7:3. Referring to FIG. 9, which shows aschematic diagram of a manufacturing process in which a handheldmelt-blown spinning machine is used to prepare composite filamentaccording to Embodiment 4. As shown in FIG. 9, the handheld melt-blowncomposite fiber spinning machine is used to manufacture compositefilament with a core-sheath section, the temperature in a PBT spinningbox is 250° C. , and the temperature in a TPU spinning box is 200° C.,and spinning is performed through a melt-blowing process, and a spraygun is used to spray yarn onto a shoe last, so as to form a shoesurface, wherein the high-pressure air pressure is 2800 psi, and thehigh-pressure air temperature is 170° C., so the composite filament witha diameter of 20 μm and a thickness of 0.2 mm can be manufactured, andthe TPU also can be colorized by adding the Color Masterbatch.

EMBODIMENT 5

PET (polyethylene terephthalate, IV=0.5) is taken as an ingredient of acore portion, TPU (thermoplastic polyurethane, MI=50, 190° C., 2.16 kg)is taken as an ingredient of a sheath portion, and a ratio of the weightof PET to that of TPU is 6:4. A spunbond composite fiber spinningmachine (FIG. 7) is used to manufacture composite filament with acore-sheath section, the temperature in a PET spinning box is 260° C.,the temperature in a TPU spinning box is 220° C., and spinning isperformed through a spunbond process, wherein the air pressure is 9kg/cm², the wind induced yarn drawing speed is 4000 m/min, and theconveying belt speed is 4 m/min, so the composite filament with adiameter of 20 μm and a spunbond nonwoven textile with a thickness of0.22 mm can be manufactured. Then a hot-pressing machine (at atemperature of 110° C. and a pressure of 5 kg/cm²) is used to hot-pressthe spunbond nonwoven textile, and the spunbond nonwoven textile afterthe hot-pressing is 0.2 mm in thickness, and has well dimensionalstability.

A water-based polyurethane (PU) is coated onto the spunbond nonwoventextile, and the water-based polyurethane (PU) can be formed into anelastomer film after drying, so as to manufacture anenvironment-friendly composite filament artificial leather.

EMBODIMENT 6

The composite filament with the specification of 100d/24 f manufacturedthrough melt-spinning in Embodiment 1 is taken as wrap, thehigh-tenacity polyester filament with the tenacity greater than 6 g/denand the specification of 75 d/24 f is taken as weft, and the two typesof filament are manufactured into a plain woven textile with a thicknessof 0.12 mm through a loom by means of the wrap density is 120pieces/2.54 cm, and the weft density is 90 pieces/2.54 cm. A CO₂ foamedTPU film with a thickness of 0.12 mm, a foaming expansion ratio of 1.59and a density of 0.755 g/cm³ and the plain woven textile are hot-pressedand laminated with a hot-pressing machine at a temperature of 125° C.and a pressure of 25 kg/cm², and the foamed TPU film and the TPU of thesheath portion of the composite filament are simultaneously softened andmelted due to heat and are hot-laminated, so a soft and elasticsemi-finished product of the environment-friendly composite filamentartificial leather can be manufactured with a thickness of 0.24 mm. Byuse of a polyurethane(PU) dry coating process with a release paper,first to coating a water-based polyurethane be the surface layer andsecond to coating a water-based adhesive, both of them are sequentiallycoated on the release paper, then the foregoing semi-finished productare laminate to water-based adhesive, finally release from the releasepaper, the high-physical-property which the tensile strength is 55kg/cm² and environment-friendly composite filament artificial leatherwith various surface textures can be manufactured.

EMBODIMENT 7

The composite filament with the specification of 100 d/24 f manufacturedthrough melt-spinning in Embodiment 1 and the high-tenacity polyesterfilament with the tenacity greater than 6 g/den and the specification of50 d/24 f are used to perform a S-twist to manufacture false-twist yarnof 150/48/2, and the false-twist yarn is manufactured into a knittedtextile with a thickness of 0.08 mm by using a knitting machine. A CO₂foamed TPU film with a thickness of 0.1 mm, a foaming expansion ratio of1.57 and a density of 0.763 g/cm³ and the knitted textile arehot-pressed and laminated with a hot-pressing machine at a temperatureof 120° C. and a pressure of 15 kg/cm², and the foamed TPU film and theTPU of the sheath portion of the composite filament are simultaneouslysoftened and melted due to heat and are hot-laminated, so a soft andelastic semi-finished product of the environment-friendly compositefilament artificial leather can be manufactured with a thickness of 0.18mm By use of a polyurethane(PU) dry coating process with a releasepaper, first to coating a water-based polyurethane be the surface layerand second to coating a water-based adhesive, both of them aresequentially coated on the release paper, then the foregoingsemi-finished product are laminate to water-based adhesive, finallyrelease from the release paper, the environment-friendly compositefilament artificial leather with various surface textures can bemanufactured.

Moreover, the scope of the present application is not intended to belimited to the particular embodiments of the process, machine,manufacture, and composition of matter, means, methods and stepsdescribed in the specification. As those skilled in the art will readilyappreciate form the present disclosure, processes, machines,manufacture, compositions of matter, means, methods, or steps, presentlyexisting or later to be developed, that perform substantially the samefunction or achieve substantially the same result as the correspondingembodiments described herein may be utilized according to the presentdisclosure.

Accordingly, the appended claims are intended to include within theirscope such processes, machines, manufacture, and compositions of matter,means, methods or steps. In addition, each claim constitutes a separateembodiment, and the combination of various claims and embodiments arewithin the scope of the invention.

What is claimed is:
 1. An environmental-friendly composite filamentartificial leather, comprising: a composite filament textile, which ismade of composite filament, wherein the composite filament includes atleast one core portion and a sheath portion, the at least one coreportion is a polyester polymer, a polyamide polymer or a polypropylenepolymer, the sheath portion sheathes the at least one core portion, andthe sheath portion is a thermoplastic elastomer; and an elastomer filmbonded with the composite filament textile, wherein the elastomer filmis made of one selected from the following materials: thermoplasticpolyurethane (TPU), thermoplastic polyester elastomer (TPEE) andthermoplastic polyolefin (TPO); wherein the elastomer film is anon-foamed film, and the thickness of the non-foamed film is 0.1 to 2.0mm inclusive.
 2. The environmental-friendly composite filamentartificial leather of claim 1, wherein the composite filament textile isin a woven or nonwoven form.
 3. The environmental-friendly compositefilament artificial leather of claim 1, wherein the elastomer film andthe composite filament textile are bonded in one manner selected fromthe following: bonding by using an water-based adhesive with a solidcontent of 5-55% inclusive, and bonding by directly performinghot-pressing at a temperature ranging from 90 to 180° C. inclusive. 4.(canceled)
 5. (canceled)
 6. The environmental-friendly compositefilament artificial leather of claim 1, wherein the composite filamenttextile is made by blending composite filament and polyester filament orpolyamide filament.
 7. The environmental-friendly composite filamentartificial leather of claim 1, wherein the at least one core portionaccounts for a proportion of 10 to 90% inclusive of the entire filamentweight, and the sheath portion accounts for a proportion of 90 to 10%inclusive of the entire filament weight.
 8. The environmental-friendlycomposite filament artificial leather of claim 1, wherein the at leastone core portion is one selected from the following polymers:polyethylene terephthalate (PET), polybutylene terephthalate (PBT),polytrimethylene terephthalate (PTT), thermoplastic aliphatic polyester(PLA), polycaprolactam (Nylon6), polyhexamethylene adipamide (Nylon6,6),polypropylene homopolymer and polypropylene random copolymer. 9.(canceled)
 10. (canceled)
 11. (canceled)
 12. (canceled)
 13. (canceled)